a national laboratory of the us department energy office efficiency & renewable innovation for our future trends in utility green pricing programs 2005 lori bird and elizabeth brown technical report nrel tp 640 40777 october 2006 is operated by midwest research institute battelle contract no de ac36 99 go10337 prepared under task asg6 1003 1617 cole boulevard golden colorado 80401 3393 303 275 3000 www gov notice this was as an account work sponsored agency united states government neither nor any thereof their employees makes warranty express or implied assumes legal liability responsibility accuracy completeness usefulness information apparatus product process disclosed represents that its use would not infringe privately owned rights reference herein to
